Rhetorical Devices: These are techniques used to enhance language and rhetoric. Examples include similes, metaphors, alliteration.
Tone: Refers to the writer's attitude towards the subject matter. Different word choices can help establish various tones such as formal, informal, serious, or playful.
Connotation: This term refers to the emotional or cultural associations that words carry beyond their literal meanings. Selecting words with positive or negative connotations can influence how readers perceive your thesis.